CN104680717A - Wearable falling detection brooch - Google Patents
Wearable falling detection brooch Download PDFInfo
- Publication number
- CN104680717A CN104680717A CN201510068993.0A CN201510068993A CN104680717A CN 104680717 A CN104680717 A CN 104680717A CN 201510068993 A CN201510068993 A CN 201510068993A CN 104680717 A CN104680717 A CN 104680717A
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- CN
- China
- Prior art keywords
- brooch
- processing unit
- sensing unit
- fall detection
- wearable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
- G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Gerontology & Geriatric Medicine (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Psychiatry (AREA)
- Psychology (AREA)
- Social Psychology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention relates to the field of sensor detection and discloses a wearable falling detection brooch. The wearable falling detection brooch comprises a brooch shell, a sensing unit, a processing unit and a wireless communication module, wherein the sensing unit is an angular speed sensor; the processing unit is used for receiving and processing data acquired by the sensing unit; the wireless communication module is used for sending the data processed by the processing unit to an upper computer; the sensing unit, the processing unit and the wireless communication module are arranged inside the brooch shell. The wearable falling detection brooch is small in size, convenient to wear, cost-saving, high in falling detection accuracy and long in service life, and does not influence the daily activities of a human body.
Description
Technical field
The present invention relates to sensor detection field, particularly relate to a kind of wearable fall detection brooch.
Background technology
Falling is serious threat to senior health and fitness and even life, also brings white elephant to society.In China, falling is the over-65s the elderly first place injury cause of the death.How to obtain human body fall behavior kinematic data and carry out accurately identifying and timely early warning to it, the injury brought owing to falling reduction the elderly is significant.
At present, the automatic testing method for Falls in Old People is mainly contained and is detected by video, or audio frequency and Vibration identification.But because human body daily behavior Comparison of Gardening Activities is complicated, the situation in actual application environment or sound can to the detection existence erroneous judgements in various degree of falling; On the other hand, the very large reason that the video of high definition or the application of audio frequency apparatus are restricted is expensive, and bulky, and application scenario is limited to, and cannot identify and early warning Falls in Old People behavior real-time and accurately.
For the elderly, wear brooch and can not only improve mental attitude, and any inconvenience can not be caused to daily life, than wear wrist-watch or carrying mobile phone more convenient, the sensor integration of the behavior of dropping to can be detected in brooch housing, make brooch except decoration function, have more and detect behavior of falling and the function of reporting to the police, there is provided herein a kind of wearable fall detection brooch, do not affect the regular event of human body, compact, cost is controlled, detect the precision of falling high, brooch is not easily drenched, and extends the serviceable life of checkout equipment.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the invention is: provide a kind of wearable fall detection brooch, compact, wearing conveniently, cost-saving, do not affect the daily routines of human body, detect the precision of falling high.
In order to solve the technical matters in background technology, the invention provides a kind of wearable fall detection brooch, comprise brooch housing, sensing unit, processing unit and wireless communication module, wherein, described sensing unit is angular-rate sensor, described processing unit for receive and process described sensing unit gather data, described wireless communication module is used for the data of described processing unit processes to send to host computer, and described sensing unit, processing unit and wireless communication module are located at the inside of described brooch housing.
Alternatively, described wearable fall detection brooch also comprises the data storage cell be located in described brooch housing, the raw data that described data storage cell gathers for recording described sensing unit.
Particularly, described wearable fall detection brooch also comprises low-pass filter circuit, and the output terminal of described sensing unit is connected with the input end of described low-pass filter circuit, and the output terminal of described low-pass filter circuit is connected with the input end of described processing unit.
Alternatively, described data storage cell is SD card.
Preferably, the periphery of described processing unit comprises A/D converter and bus.
Further, wearable fall detection brooch provided by the invention also comprises power storage module and charging inlet.
Particularly, the range of described angular-rate sensor is ± 500 °/s.
The principle of wearable fall detection brooch of the present invention is that 1. angular velocity feature is an Important Parameters in human body motion feature, during human normal walking, angular velocity periodically rule change, and falling the moment, the sense of equilibrium is deteriorated, lower limb muscles convergent force declines, cause walking discontinuous, pin can not be raised, heelstrike, in the process of falling, the change of the angle of pitch is the most obvious, can there is acute variation in angular velocity, so the change of angular velocity can reflect the change of human motion state; 2. angular-rate sensor can the angle of pitch information of human body; 3. processing unit processes angular velocity information, and result is sent to controller; 4. according to angular velocity, controller judges whether behavior of falling occurs, if fall behavior, warning message sends to host computer to show by wireless module by controller in real time.
Adopt technique scheme, wearable fall detection brooch compact of the present invention, wear conveniently, cost-saving, do not affect the daily routines of human body, detect the precision of falling high, long service life.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system hardware figure of the wearable fall detection brooch that the embodiment of the present invention provides;
Fig. 2 is the experimental data figure of state of the falling lower angle change that the embodiment of the present invention provides;
Fig. 3 is the experimental data figure of state of the falling inferior horn velocity variations that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
The system hardware figure of the wearable fall detection brooch that embodiment: Fig. 1 provides for the embodiment of the present invention, can clearly be seen that from figure, the wearable fall detection brooch that the present embodiment provides comprises brooch housing, sensing unit, low-pass filter circuit, processing unit, data storage cell and wireless communication module, wherein, described sensing unit is angular-rate sensor, the output terminal of described sensing unit is connected with the input end of described low-pass filter circuit, the output terminal of described low-pass filter circuit is connected with the input end of described processing unit, described processing unit for receive and process described sensing unit gather data, the raw data that described data storage cell gathers for recording described sensing unit, described wireless communication module is used for the data of described processing unit processes to send to host computer, described sensing unit, low-pass filter circuit, processing unit, data storage cell and wireless communication module are located at the inside of described brooch housing, wearable fall detection brooch provided by the invention can also be charged to power storage module by charging inlet, described power storage module is used for powering to described processing unit.
In the present embodiment, described sensing unit adopts the double-shaft MEMS gyroscope IDG-300 of InvenSense company, and particularly, the range of described angular-rate sensor is ± 500 °/s; Described processing unit adopts the STM32 series monolithic based on Cortex-M3 kernel of ST company, its core frequency is 72MHz, can meet the requirement of data processing, its peripheral hardware contains high performance 12 high-speed a/d converters and the multiple bus interface such as high speed SPI bus and USART interface.Bus on chip has DMA passage, and the data obtained from A/D converter directly can be sent to each bus interface and not by the intervention of CPU.
In system acquisition process, in order to analyze the change of each sensor signal in the process of falling, need the raw data of sensor is stored and is sent to host computer analysis, in the process of image data, original data volume is large, packet loss phenomenon may be there is in wireless module transmitting procedure, therefore, need the raw data of data storage cell record sensor, in the present embodiment, adopt SD card as portable memory apparatus.
Through a series of experiment test, when experimenter simulates and falls action, experimental result as shown in Figures 2 and 3, forward direction or backward when falling down, angle of pitch acute variation, the angle change that side direction is fallen down is not very greatly, but, no matter be that pitching is fallen or side direction is fallen, the change of angular velocity is mostly comparatively violent, and there will be positive negative two extreme values.To sum up experimental data is known, when two extreme values appear in the angular velocity of human body, especially when the absolute value of extreme value is more than 150 °/s, can judge that human body there occurs the behavior of falling.
Wearable fall detection brooch compact of the present invention, wears conveniently, cost-saving, does not affect the daily routines of human body, detects the precision of falling high, long service life.
Above disclosedly be only several preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (7)
1. a wearable fall detection brooch, it is characterized in that, comprise brooch housing, sensing unit, processing unit and wireless communication module, wherein, described sensing unit is angular-rate sensor, described processing unit for receive and process described sensing unit gather data, described wireless communication module be used for the data of described processing unit processes are sent to host computer, described sensing unit, processing unit and wireless communication module are located at the inside of described brooch housing.
2. wearable fall detection brooch as claimed in claim 1, is characterized in that, also comprises the data storage cell be located in described brooch housing, the raw data that described data storage cell gathers for recording described sensing unit.
3. wearable fall detection brooch as claimed in claim 1, it is characterized in that, also comprise low-pass filter circuit, the output terminal of described sensing unit is connected with the input end of described low-pass filter circuit, and the output terminal of described low-pass filter circuit is connected with the input end of described processing unit.
4. wearable fall detection brooch as claimed in claim 2, is characterized in that, described data storage cell is SD card.
5. wearable fall detection brooch as claimed in claim 3, is characterized in that, the periphery of described processing unit comprises A/D converter and bus.
6., as the wearable fall detection brooch in claim 1 to 5 as described in any one, it is characterized in that, also comprise power storage module and charging inlet.
7. wearable fall detection brooch as claimed in claim 6, is characterized in that, the range of described angular-rate sensor is ± 500 °/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068993.0A CN104680717A (en) | 2015-02-10 | 2015-02-10 | Wearable falling detection brooch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068993.0A CN104680717A (en) | 2015-02-10 | 2015-02-10 | Wearable falling detection brooch |
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| CN104680717A true CN104680717A (en) | 2015-06-03 |
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| CN201510068993.0A Pending CN104680717A (en) | 2015-02-10 | 2015-02-10 | Wearable falling detection brooch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118235A (en) * | 2015-09-09 | 2015-12-02 | 成都手杖科技有限公司 | Acceleration sensor-based remote falling down monitoring device |
| CN105577914A (en) * | 2015-11-03 | 2016-05-11 | 上海救要救信息科技有限公司 | Portable intelligent terminal used in competition and method for calling for help |
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| CN201387660Y (en) * | 2009-04-28 | 2010-01-20 | 中国科学院合肥物质科学研究院 | Automatic detecting and alarming system for human body falling-over |
| CN101702258A (en) * | 2009-04-28 | 2010-05-05 | 中国科学院合肥物质科学研究院 | Automatic detection alarming system for falling over of human body and information processing method thereof |
| WO2011116406A2 (en) * | 2010-03-23 | 2011-09-29 | Spantec Gmbh | Method for verifying a fall of a person |
| CN102446392A (en) * | 2011-09-30 | 2012-05-09 | 上海交通大学 | Portable wireless falling monitoring system based on walking power generation |
| CN103377541A (en) * | 2013-07-16 | 2013-10-30 | 中国科学院深圳先进技术研究院 | Human body fall-down prevention early warning and intervening method and system |
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2015
- 2015-02-10 CN CN201510068993.0A patent/CN104680717A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387660Y (en) * | 2009-04-28 | 2010-01-20 | 中国科学院合肥物质科学研究院 | Automatic detecting and alarming system for human body falling-over |
| CN101702258A (en) * | 2009-04-28 | 2010-05-05 | 中国科学院合肥物质科学研究院 | Automatic detection alarming system for falling over of human body and information processing method thereof |
| WO2011116406A2 (en) * | 2010-03-23 | 2011-09-29 | Spantec Gmbh | Method for verifying a fall of a person |
| CN102446392A (en) * | 2011-09-30 | 2012-05-09 | 上海交通大学 | Portable wireless falling monitoring system based on walking power generation |
| CN103377541A (en) * | 2013-07-16 | 2013-10-30 | 中国科学院深圳先进技术研究院 | Human body fall-down prevention early warning and intervening method and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118235A (en) * | 2015-09-09 | 2015-12-02 | 成都手杖科技有限公司 | Acceleration sensor-based remote falling down monitoring device |
| CN105577914A (en) * | 2015-11-03 | 2016-05-11 | 上海救要救信息科技有限公司 | Portable intelligent terminal used in competition and method for calling for help |
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Application publication date: 20150603 |